Stand for electric fans



July 8, 1941. w DEVORE ET AL 2,248,068

STAND FOR ELECTRIC FANS Filed Oct. 6, 1939 3 Sheets-Sheet l y 8, 1941. R. w. DEVORE 5T AL 2 248 068 STAND FOR ELECTRIC FANS Filed Oct. 6, 1959 3 Sheets-Sheet 2 July8, 1941. R. w. DEVORE ETAL 2,248,068

5mm FOR ELECTRIC FANS Filed Oct. s, 1939 3 Sheets-Sheet 3 Patented July 8, 1941 UNITED STATES-PATENT OFFICE STAND FOB ELECTRIC FANS Robert W. Devore, McHeilry, and Ben H. Young,

Chicago, 111.

Application October 6, 1939, Serial No. 298,174

2 Claims. (Cl. 248158) I This invention relates to a stand and particularly to a stand for electric fans or the like. It is customary to mount an electric fan or similar device on a comparatively small stand to be supported on a desk or other elevated place or to be supported on the floor and extend but a short distance up therefrom. It is also customary to support fans on high stands which may be disposed on a floor and the fan proper be as high as six or eight feet or even higher in the air. In most instances the fan proper, that is the fan motor, propeller and remaining apparatus is the same or may be the same irrespective of the type of stand upon which the device is supported. On the other hand it is highly desirable to supply a complete fan outfit including the stand with either a short or long stand.

In the case of dealers and service men having a stock of parts on hand, it is highly desirable to be able to supply all pants and models without having large inventories. Thus, it is desirable for a dealer to have a set of different size stands and a set of different size fans each of which may be interchangeable with the other so that any desired model may be assembled from the various pants.

In the case of fans supported on a stand at a substantial distance from the floor such as six or eight feet, it is desirable that the entire apparatus be easily dismantled so that it may be shipped with a minimum of expense and difficulties. It is also desirable that the entire apparatus be assembled in a simple and. easy manner so that in the event of a purchaser receiving the disassembled apparatus, such purchaser, even though unskilled, may be able to assemble the entire device with a minimum of trouble.

While interchangeable part-s or stands are well known, it is necessary that the parts in a stand for an electric fan fit together snugly and maintain the entire assembly firmly in position. The reaction of the air stream on the propeller and motor of a large fan results in a substantial force which must be taken up by the stand and base. This force is not always constant andmay vary due to blasts of air from windows or other fans. The result is that the base must be able to support a substantially heavy fan without objectionable sway and vibration. In order to accomplish this in a manner which will permit ready assembly by an unskilled person as well as convenient dismantling, it is essential that the stand be simple and effective.

In order to support a fan or similar device at a substantial distance above the 15100 it 1 necessary to provide a base having a substantial area to prevent dangerous swaying and possible overturning of the stand.- It is important that the base maintain a firm foothold on the floor or. supporting structure and, in those lnstangces where the floor is uneven, this becomes rather diflicult. In addition, the base should be insulated from the floor as regards vibration and noise. The floor upon which the base stands may act asasounding board otherwise and amplify vibration and noise. This .is particularly objectionable to anyone in the floor below. By the invention described herein, substantial un-- evenness of the floor is compensated for by suite able-means disposed in the base, while atthe same time the transmission of vibration and noise from the stand to the floor is effectively eliminated. a

The entire structure is simple, fool-proof, cheap to manufacture and is susceptible to ready replacement to interchangeability as desired.

Referring :to the drawings:

Figure 1 is anelevation view of a telescopic type stand supporting a fan; 1

Fig..- 2 isa detail of the telescopic supporting pipe and bracket uponwhich the fan motor is supported; I a v Fig. 3 is a detail of a base together with a simple pipe forming a short stan'd base;

Fig. '3A shows a pipe adapted to cooperate with the base of Fig. 3 for forming. a stand; Fig. 4 is a section through the center of base taken on line 44 of Fig.- 5;- I. Fig. 5 is a bottom view of. the base;

Fig. 6 is a sectional detail on B-6 of Fig. 5;

Fig. 7 is a sectional elevation of a modified form of base taken on line 1-1 of Fig. 8; and

Fig. 8 is a bottom view of the base shown in Fig. 7. v

Referring to the drawings and particularly to Fig. 1, there is shown a telescopic stand I0 consisting of a base II and a column l2 upon which is mounted a fan assembly l3. This assembly comprises a motor 14 carrying a propeller l5 enclosed by a suitable fan-guard.

Motor M has supporting arm I! suitably apertured adapted to be disposed against acooperating arm l8. This arm I8 is formed of a bolt I9 having a flat apertured part 20 around which is cast additionalmetal forming arm Hi. This additional metal may be conveniently die cast to provide a bright ornamental finish.

Bolt l 9 passes through an L bracket 2| having serrated face 22 cooperating with a similarly serrated face on arm l8. A nut 23 on boltl9 rigidly clamps the entire bracket assembly in position.

The telescopic stand shown in Figures 1 and 2 includes a pipe section 26 of uniform diameter adapted to slide in a large pipe 28 and be retained in predetermined adjusted position by a clamp 29.

Referring to Figures 3 and 3A, a base II' is shown. This base is adapted to have a large diameter pipe such as 28 inserted therein. On the other hand, this base is smaller than base II and is not desirable for use with large telescoping stands. To eliminate the necessity for changing bracket 2|, a pipe 28A having'a reduced end section 26A is provided. End 26A is I the same size as pipe 26 while 28A is the same 3 as 28. In this way, interchange .of pipes and bases is promoted.

Referring to Figs. 4 and 5, one form of base is shown consisting of .a heavy casting 3| of a general annular shape. Casting '3I may be, of any suitable'shapeand as shown here is provided with asemicircular recessed'bottom 32 and an. inner edge.33'. Disposed in, semicircular recess 32 .as by cementing or .the like is a length j of stiff rubber hose '35 whose ends 36 and 31 are separatedby a. gap. The material of the base f is cut-away at.38 at.the gap between the ends 5 3'6 and 310i the. rubber hose. Incut away portions 38' is a retainingclamp; 39 maintained in position by a screw, 40. This clamp.39 has end member 50 and casting 3| may be disassembled to form base I I' as shown in Fig. 3.

Referring to Figs. 7 and 8, there is shown a casting I3I of suitable size having a semicircular bottom recess I32 similar to 32 in Fig. 4. The inner edge I33 of casting I3l extends further from the edge of the casting than is true of the structure shown in Fig. 4 for example. The comparatively large expanse of" metal of casting I3l maybe relieved by atrim I35 maintained in position by rings I36 whose ends I31 extend through suitable apertures in casting I3I and are pulled inwardly on the inside of the metal wall by means of a block I38 and screw I39 hearing against the inside surface of the casting.

Adjacent inner edge I33 of base I3I, is a series .of apertures I41 suitably tapped to accommodate bolts I48. Rigidly bolted to casting I3I by means of these bolts I48 are a pair of pressed steel bearing members or supporting, members I50 and I5I. These are disposed in opposed relation with their wide bottoms I52 and I53 adjacent each other. Member I50 has a series of steps I55, I56 and a top step I51 whose edge I58 is inturned. Bottom member I-5-I also has ,a series of steps I 55, I56 and I51" which are identical to steps I55, I56 and I51. Bottom member I5l has its step I51 with edge I formed as a cup having an inturned flange I6I at the bottom with the center thereof cutout. V

By thus making thevarious steps equal, it is possible to press members'lfifl and I-5I-out of the same set of dies except for the last operation of producing the intu-rned edge I58 on one hand and cup I60 on the other; Inasmuch as the dimensions of members I50 and I5I are such that in practice several drawsmust be made. it is pressed steel' 'member il having suitabledecorative steps 52., and 53 jormed'thereinextending upwardly from base 3! untilfa'stepped bearing member 55 is formed. This bearing member 55 has an inwardlyturnedlip 56 formed therein.

Diametrically disposed across the bottom of pressed member 50 is a supporting plate, 56 spot welded or suitablyffastened to opposite portions of pressed member 50. Plate59 supports at the I centerya cup-shaped'member 59 whose bottom 60 isppen'except tor a peripheral flange 61. In j practice plate imember 58 is positioned so that i cup-member 5.9 is substantially'concentric with 1 the liprportion' 56;; prior 'to the welding or bolting of the plate 578*to the pressed member 1 50. Preferably'thedimensions oi'lip 56 and cup 59 are suchthatjbottom'; 63' of pipe '29 may fit snugly therein. Due tothe distance between the lip and cup, considerable support is given to the pipe without requiring extremely accurate fit or heavy material: The bottom 63 of'the pipe may .be retained in position by a screw 64' passing 1 through a suitable aperture in cap 59 and engaging 'a tapped hole 55in the pipe. 1 i The base described i'n connection with Figs. 14 and 5 of the" drawings is principally for use iwithflcomparatively short lengths of pipe. For very short pipes, such-asin Fig. 3A, the assembly 56may be used ass base by itself, as shown in FigureS In'order'to provide for this possibility a series of' rubber estes are riveted to the pressed .member 50," Slots 61 are provided in 1 castin 3' to accorrimodate"rubber feet 66 when pressed member 56 is us'ed with casting 3|. Hence even'aft'er assembly, as shown in Fig. 4,

evident that use of the same dies for the drawing of most of the steps effects asubstantial saving in tooling. r v

Bottom I28 of the pipe may'then be inserted as shown and retained place by means of a bolt I64 in a manner similar to the corresponding bolt 64in Fig. 5. In all instances, the line cord extends up through the pipe to the motor.

It is obvious that because iif'the mechanical simplicity of the two typeset bases, thja t assembly and dismantling f'the b'ase may be accom; plished with a minimum o'f'labor. Furthermore, because of the distance between the points of support at the bottom of the pipe, the entire stand is endowed with considerable stability. In addition, each pipe is supported'at a'comparatively short zone atspaced intervals thus eliminating accurate and expensive machine work. Preferably the various'elements for the support ing pipe in both types of bases are so proportioned so that parts may be used interchangeably.

It is obvious therefore thatadealer need only have one of each 'base and one set of pipes for each base to make up all sizes desired.

What is claimed'is:

1. A stand comprising an annular casting adapted to rest on a substantially' flat surface and having a broad base tapering to'a small top, a pressed sheet metal assembly carried bysaid casting at the center thereof, said assembly'com,

sisting of two dished members disposed in opposed relation to each other,"sai'd members tapering from a wide base to afna'rrow end with the Wide bases together at the casting top and extending above and into said casting, said dished members being identical except for the ends, the

end outside of the castinghaving its edge curled in to define a circular pipe receiving portion.

the end within the casting having a pipe receiving portion of equal diameter but having a pipe stop at the bottom thereof, and a pipe section disposed in said receiving portions and carried in a vertical position thereby, said receiving portions being separated by a distance great in comparison to the pipe diameter.

2. The structure of claim 1 wherein said casting has an annular groove at the bottom thereof in which a rubber hose is disposed and the ends of said hose are spaced to define a gap and an electric cord is disposed in said gap and wherein means engaging the ends of said hose retain said cord in position, said means being adapted to retain said hose end in position.

ROBERT WM. DEVORE. BEN H. YOUNG. 

